DAS Teaching equipment
Huang
Email: Hqy@ybphotonics.com
The DAS-EDU Fiber Optic Sensing Teaching Instrument is a visualization module developed by our company for undergraduate and graduate education. It is suitable for teaching sensor technology in related disciplines such as optoelectronics, measurement and control, instrumentation, electrical engineering, civil engineering, and transportation engineering.
As a DAS manufacturer frequently interacting with research users, YBPhotonics offers diverse product solutions for building Φ-OTDR systems. These include configurations using standalone modules as well as integrated DAS modules. The modular approach demands high user proficiency, meticulous attention to detail, and precise wiring—otherwise it may lead to fiber breakage or power supply short circuits in optical components.
To address this, we introduce the DAS-EDU educational instrument. This device integrates all module components within a 400×290×73mm aluminum alloy enclosure. Its high-transparency acrylic front panel allows users to clearly view all system components. A schematic diagram of the system wiring is printed directly onto the acrylic panel, facilitating user comprehension. To enhance hands-on learning, all module connectors are conveniently located on the instrument's side panel. Users can physically connect components themselves, deepening their understanding.
1. The system schematic is clear and concise, displaying the appearance and routing of each core component.
2. Distributed fiber optic acoustic sensing system capable of measuring long-distance optical cable vibration signals.
3. Quantitative restoration of PZT vibration signals.
4. Real-time restoration and playback of acoustic monitoring signals.
5. Includes 3D instructional animations to deepen user understanding of system principles.
6. Reserved external interfaces to enhance students' hands-on skills.
7. Full aluminum alloy enclosure with foolproof operation prevents instrument damage.
1. Used as a light source, it can output a 3k narrow-linewidth laser with a neutral wavelength of 1550.12nm and an output optical power of 10mW.
2. Source power attenuation: Output optical power can be reduced from 10mW downward.
3. Pulse generation: Outputs corresponding pulses based on modulated signals.
4. 80MHz optical frequency shift experiment
5. Pulse amplification experiment
6. Optical beat frequency generation experiment
7. Balanced detector detection experiment
8. Φ-OTDR system experiment
9. DAS distributed acoustic sensing with sound reconstruction
10. Quantitative PZT vibration signal reconstruction
11. Perimeter fence vibration monitoring experiment
12. Pipeline leak simulation experiment
13. Long-distance vibration information extraction and analysis experiment
14. Additional scenarios awaiting your development
As a manufacturer of distributed fiber optic sensing systems, we can provide customized teaching and experimental kits (including DTS, DAS, BOTDR/BOTDA systems, etc.) tailored to the specific needs of university research institutions.
| Product Type | Universal DAS hardware all-in-one | Enhanced DAS hardware all-in-one | High-performance DAS hardware all-in-one |
|---|---|---|---|
| Image | ![]() | ![]() | ![]() |
| modulation scheme | single-pulse modulation | single-pulse modulation | sweep modulation |
| demodulation | Digital IQ demodulation, fpga+upper computer software demodulation | Digital IQ demodulation, fpga+upper computer software demodulation | Chirp demodulation |
| Inhibition of Coherent Decay | Not implemented (users can implement it themselves) | implemented | implemented |
| Full-area phase demodulation | implemented | implemented | implemented |
| spatial resolution | 6-10 meters (2-3 meters at the limit) | 6-10 meters (2-3 meters at the limit) | 2meters |
| signal-to-noise ratio: | general | general | high |
| sensitivity: | general | general | high |
| Market Prevalence: | More (basically this program) | Less | Less(Only 2-3 in China) |
| Acquisition Signal: | IF signal | IQ Signal Acquisition | IF signal (complete signal acquisition) |
| Acquisition Channel: | single channel | dual channel | single channel |
| Demodulation flexibility: | High (flexibility to modify different algorithms) | Low (fixed single IQ demodulation algorithm) | High (flexibility to modify different algorithms) |
| Detection distance: | 30km/50km | 30km/50km | 20km/40km |
| detection frequency: | 50kHz@1km | 50kHz@1km | 50kHz@1km |
| response band: | 1Hz-20kHz(Distance Related) | 1Hz-20kHz(Distance Related) | 1Hz-20kHz(Distance Related) |
| Fiber Type: | Single mode G652/G652D | Single mode G652/G652D | Single mode G652/G652D |
| optical connector: | FC/APC | FC/APC | FC/APC |
| communication interface: | PCIE/Ethernet | PCIE/Ethernet | PCIE/Ethernet |
| dimension: | 482*390*133mm | 482*500*178mm | 482*500*178mm |
| electricity supply: | AC220V | AC220V | AC220V |
| power wastage: | 220W | 480W | 480W |